besmirch
/bɪˈsmɜːtʃ/verb
with obj.
1- damage (someone's reputation)诋毁, 玷污（某人的名誉）：
he had besmirched the good name of his family.
他玷污了家庭的好名声。
1.1
- poetic/literary make (something) dirty or discoloured〈诗/文〉弄脏; 使褪色：
the ground was besmirched with blood.
地面血迹斑斑。